FKIE_CVE-2026-0266
Vulnerability from fkie_nvd - Published: 2026-06-10 22:16 - Updated: 2026-06-17 10:10
Severity
Summary
A cross-site scripting (XSS) vulnerability in Palo Alto Networks PAN-OS® software enables a malicious authenticated administrator to store a JavaScript payload using the web interface.
This issue is applicable to PAN-OS software on PA-Series and VM-Series firewalls and on Panorama (virtual and M-Series).
Cloud NGFW and Prisma® Access are not affected by this vulnerability.
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Cloud NGFW",
"vendor": "Palo Alto Networks",
"versions": [
{
"status": "unaffected",
"version": "All",
"versionType": "custom"
}
]
},
{
"cpes": [
"cpe:2.3:o:palo_alto_networks:pan-os:12.1.4:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:12.1.3:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:12.1.2:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.2.10:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.2.9:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.2.8:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.2.7:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.2.6:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.2.5:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.2.4:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.2.3:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.2.2:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.2.1:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.2.0:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.1.13:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.1.12:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.1.11:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.1.10:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.1.9:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.1.8:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.1.6:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.1.5:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.1.4:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.1.3:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.1.2:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.1.1:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.1.0:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.18:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.17:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.16:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.15:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.14:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.13:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.12:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.11:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.10:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.9:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.8:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.7:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.6:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.5:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.4:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.3:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.2:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.1:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.0:*:*:*:*:*:*:*"
],
"defaultStatus": "unaffected",
"product": "PAN-OS",
"vendor": "Palo Alto Networks",
"versions": [
{
"changes": [
{
"at": "12.1.5",
"status": "unaffected"
}
],
"lessThan": "12.1.5",
"status": "affected",
"version": "12.1.0",
"versionType": "custom"
},
{
"changes": [
{
"at": "11.2.11",
"status": "unaffected"
}
],
"lessThan": "11.2.11",
"status": "affected",
"version": "11.2.0",
"versionType": "custom"
},
{
"changes": [
{
"at": "11.1.14",
"status": "unaffected"
}
],
"lessThan": "11.1.14",
"status": "affected",
"version": "11.1.0",
"versionType": "custom"
},
{
"status": "affected",
"version": "10.2.0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Prisma Access",
"vendor": "Palo Alto Networks",
"versions": [
{
"status": "unaffected",
"version": "All",
"versionType": "custom"
}
]
}
],
"source": "psirt@paloaltonetworks.com"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A cross-site scripting (XSS) vulnerability in Palo Alto Networks PAN-OS\u00ae software enables a malicious authenticated administrator to store a JavaScript payload using the web interface. \n\nThis issue is applicable to PAN-OS software on PA-Series and VM-Series firewalls and on Panorama (virtual and M-Series).\n\nCloud NGFW and Prisma\u00ae Access are not affected by this vulnerability."
}
],
"id": "CVE-2026-0266",
"lastModified": "2026-06-17T10:10:40.950",
"metrics": {
"cvssMetricV40": [
{
"cvssData": {
"Automatable": "NO",
"Recovery": "USER",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 1.1,
"baseSeverity": "LOW",
"confidentialityRequirement": "NOT_DEFINED",
"exploitMaturity": "UNREPORTED",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "HIGH",
"providerUrgency": "AMBER",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "PASSIVE",
"valueDensity": "DIFFUSE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:U/V:D/RE:M/U:Amber",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "LOW",
"vulnerabilityResponseEffort": "MODERATE"
},
"source": "psirt@paloaltonetworks.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-0266",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-11T14:34:49.983330Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-06-10T22:16:52.787",
"references": [
{
"source": "psirt@paloaltonetworks.com",
"url": "https://security.paloaltonetworks.com/CVE-2026-0266"
}
],
"sourceIdentifier": "psirt@paloaltonetworks.com",
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-79"
}
],
"source": "psirt@paloaltonetworks.com",
"type": "Secondary"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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